Collagenase from Clostridium histolyticum dissociates tissue collagen. Suppliers often associate Type I with epithelium, liver and lung, where the activities are relatively balanced. Type II is often associated with heart, thyroid, bone and cartilage, and non-collagen protease activity is often higher. Type IV usually has lower tryptic activity and is more often asked for islets and stem cells. Those are habits, not a strict map. Catch-Chem quotes Type I, II and IV separately. The activity is on the batch COA.
Activity units differ between suppliers; compare them with the COA before ordering. See tool enzymes.
Related questions
Which type has higher non-collagen protease activity?
Type II is the type often noted for higher non-collagen protease activity.
Are the types interchangeable?
Do not assume that. Compare the lot profile with the tissue.
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CAS, salt form, grade, pack size and use. A complete note is faster to quote.
Send an inquiryFor research or industrial use only. Not for human or animal diagnosis or treatment, and not for drug or food use. Grade, pack size and lead time follow the supplier batch COA / SDS. Figures on this site are general industry references, not a factory specification.